CN109897502A - The comprehensive cyclic utilization regeneration method of all kinds of waste and old epoxy-based lacquers - Google Patents
The comprehensive cyclic utilization regeneration method of all kinds of waste and old epoxy-based lacquers Download PDFInfo
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- CN109897502A CN109897502A CN201910051979.8A CN201910051979A CN109897502A CN 109897502 A CN109897502 A CN 109897502A CN 201910051979 A CN201910051979 A CN 201910051979A CN 109897502 A CN109897502 A CN 109897502A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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Abstract
The invention belongs to paint reclaiming technical field, and in particular to the comprehensive cyclic utilization regeneration method of all kinds of waste and old epoxy-based lacquers.The waste and old coating of epoxy ingredient property and the sorting of other categories are opened first, is concentrated into closed container that cyclohexanone, n-butanol, ethyl carbonate mixed solvent are added again and impregnated 4 hours;Then 300 revs/min of dispersion stirrings of low speed, by temperature automatically controlled 80-110 degree, closed automatic control finer mesh equipment isolates the solidfied material and coat of paint residue because generating with contacts such as water, oil, air and curing agent;Then it carries out indices test and various resins and solid phenolic resin is added according to index request situation, finally sequentially add various auxiliary agents, Lai Pingheng and obtain the requirement for being able to satisfy the epoxy heavy-duty antiseptic paint of various performance indicators.Regeneration technology provided by the invention is simple, and product cost is cheap, and the main product for using a large amount of waste and old epoxy coating and scrapping epoxy coating and stock, it is convenient to collect, and reduces resource waste.
Description
Technical field
The invention belongs to paint reclaiming technical field, and in particular to a kind of comprehensive cyclic utilization of all kinds of waste and old epoxy-based lacquers
Regeneration method.
Background technique
With the high speed development of China's industrial project, the increasingly raising of people's living standard.Caused by industrial and civilian
The wastes explosion type such as associated scrap and landfill product increases, and yield is huge.
The only coating known to us one, through inspection information, about 53,470,000 tons of hazardous waste garbage.According to incomplete system
Meter, it is 300,000 tons that dangerous waste paint residue yield is only in China 2017!
Coating in process of production, is related to resins synthesis, and use a variety of industrial chemicals such as organic solvent and auxiliary agent mostly.
Simultaneously also containing largely as various macromolecular organic compounds and nano level superfine inorganic material etc. such as thickener and dispersing agents.
Such as titanium dioxide, kaolin and various colored pigments.Paint residue containing these ingredients and coating is scrapped if do not done innoxious place
It sets or is subject to resource and live again utilization, it will environment is caused seriously to pollute, becomes " environment malignant tumor ".
All kinds of epoxy heavy-duty anticorrosive coating equipment and steel with failure are scrapped for shipyard, oil plant, power plant, chemical plant etc.
Structure, used all kinds of epoxy heavy-duty anticorrosive coatings are unqualified or expired when carrying out protective coating and product that is scrapping accounts for a big portion
Point, if directly discarded without recycling, not only result in waste of resources, and current environment protection and Green Development are had become
Distinct themes of the times are inconsistent, and environmental pollution improvement is both the basic guarantor of the efforts at environmental protection most important thing and Green Development
Barrier promotes industry to go on the track of benign sustainable development, final to realize that the very big of environmental quality improves and improve, so by this
The unqualified or expired coating Product recycling discarded a bit is processing modified, comprehensive cyclic utilization regenerates, and turning waste into wealth is one
The significant task of item.
Summary of the invention
It is an object of the invention to provide a kind of synthesis of all kinds of waste and old epoxy-based lacquers aiming at the problems existing in the prior art
Recycle regeneration method.
The technical scheme is that
The comprehensive cyclic utilization regeneration method of all kinds of waste and old epoxy-based lacquers, includes the following steps:
One: the waste and old epoxy-based lacquers coating of the heavy antisepsis that factory's coating decoration gets off first and other categories are by base ingredients point
It picks out, the waste and old coating of heavy antisepsis of epoxy ingredient property that sorting is opened is concentrated into closed container, then by cyclohexanone, positive fourth
Alcohol, ethyl carbonate mixed solvent are added in closed container and stir evenly, and then carry out immersion 4 hours or more, and must give up paint A;
Two, by the closed container for containing useless paint A in step 1, it is put into blender, starts blender, with 300 revs/min
Speed carries out dispersion stirring 1 hour or more, while being heated, and temperature is kept when temperature reaches when 80-110 is spent, by closed
Automatic control finer mesh equipment filter out impurity, must give up paint B, the strainer used be 200-400 mesh screen;
Three, indices test is carried out to useless paint B, according to index request situation, adds solid phenolic resin, then successively
Bentonite, levelling agent, adhesion promoter and defoaming agent, Lai Pingheng and the epoxy heavy antisepsis for meeting various performance indicators is added
Paint, then successively carry out grinding distribution to particle fineness and be less than 20 μm, test, barrelling, obtain finished product epoxy heavy-duty antiseptic paint.
Specifically, by the waste and old coating total amount of the heavy antisepsis that coating decoration gets off be 60 parts by weight in terms of, the solid of the addition
The amount of phenolic resin is 20-30 parts, 2-4 parts of cyclohexanone, 2-3 parts of n-butanol, 5-6 parts of ethyl carbonate, 2-3 parts of bentonite, levelling
0.4-0.6 parts of agent, 0.4-0.6 parts of adhesion promoter and 0.4-0.6 parts of defoaming agent.
Specifically, by the waste and old coating total amount of the heavy antisepsis that coating decoration gets off be 60 parts by weight in terms of, the solid of the addition
The amount of phenolic resin is 25 parts, 3 parts of cyclohexanone, 2.5 parts of n-butanol, 5.5 parts of ethyl carbonate, 2.5 parts of bentonite, levelling agent 0.5
Part, 0.5 part of adhesion promoter and 0.5 part of defoaming agent.
Specifically, the grinding distribution time is 2-3.5 hours in the step three.
Specifically, being and water, oil, air and solid using automatically controlling the impurity that filters out of finer mesh in the step two
The solidfied material and coat of paint residue that the contacts such as agent generate.
The beneficial effects of the present invention are: the waste in order to solve the problems, such as the waste and old waste and old coating of epoxy heavy antisepsis, the present invention
A kind of comprehensive cyclic utilization regeneration method to all kinds of waste and old epoxy-based lacquers is provided, the lytic agent used has strong solubility, energy
The main base of the enough waste and old coating of epoxy heavy antisepsis for guaranteeing recycling can dissolve, and joined solid phenol-formaldehyde in regenerative process
Resin component, to change the performance of new product, the new product regenerated faster compared with universal epoxy coating rate of drying, resistance to punching
Hitting property is stronger, and acid-proof alkaline is excellent, and regenerated coating solids are high, and one-pass film-forming thickness is big, and film is finer and close, reduces painting
Film road number, saves a large amount of cost of labor, so as to extend the corrosion protection service life of equipment, obtains good economic results in society.
Regeneration technology provided by the invention is simple, and product cost is cheap, main using a large amount of waste and old epoxy coating and report
Useless epoxy coating stock, it is convenient to collect, and reduces waste, can be realized energy-saving and environment-friendly realistic meaning, saved preciousness
Resource, make resource recyclable regenerative, be a kind of technical solution being extremely worth of widely use.
Specific embodiment
It, below will be to the embodiment of the present invention in order to keep the purposes, technical schemes and advantages of the embodiment of the present invention clearer
In technical solution be clearly and completely described.It is to indicate actual conditions person according to normal conditions or in manufacture in embodiment
It is recommended that condition carry out.Production firm person is not specified in agents useful for same, is the conventional products that can be obtained by commercially available purchase.
The comprehensive cyclic utilization regeneration method of all kinds of waste and old epoxy-based lacquers, includes the following steps:
One: the waste and old epoxy-based lacquers coating of the heavy antisepsis that factory's coating decoration gets off first and other categories are by base ingredients point
It picks out, the waste and old coating of heavy antisepsis of epoxy ingredient property that sorting is opened is concentrated into closed container, then by cyclohexanone, positive fourth
Alcohol, ethyl carbonate mixed solvent are added in closed container and stir evenly, and then carry out immersion 4 hours or more, and must give up paint A;
Two, by the closed container for containing useless paint A in step 1, it is put into blender, starts blender, with 300 revs/min
Speed carries out dispersion stirring 1 hour or more, while being heated, and temperature is kept when 80-110 is spent when temperature reaches, use is closed
The impurity that filters out of automatic control finer mesh equipment be the solidfied material and paint generated with contacts such as water, oil, air and curing agent
Skin residue, must give up paint B, and the strainer used is 200-400 mesh screen;
Three, indices test is carried out to useless paint B, according to index request situation, adds solid phenolic resin, then successively
Bentonite, levelling agent, adhesion promoter and defoaming agent, Lai Pingheng and the epoxy heavy antisepsis for meeting various performance indicators is added
Paint, then successively carry out grinding distribution to particle fineness and be less than 20 μm, test, barrelling, finished product epoxy heavy-duty antiseptic paint is obtained, is ground
Grinding jitter time is 2-3.5 hours, and the waste and old coating total amount of the heavy antisepsis to be got off by coating decoration is the addition in terms of 60 parts by weight
Solid phenolic resin amount be 20-30 parts, 2-4 parts of cyclohexanone, 2-3 parts of n-butanol, 5-6 parts of ethyl carbonate, bentonite 2-3
Part, 0.4-0.6 parts of levelling agent, 0.4-0.6 parts of adhesion promoter and 0.4-0.6 parts of defoaming agent.
Preferably, in terms of by the waste and old coating total amount of the heavy antisepsis that coating decoration gets off for 60 parts by weight, the solid of the addition
The amount of phenolic resin is 25 parts, 3 parts of cyclohexanone, 2.5 parts of n-butanol, 5.5 parts of ethyl carbonate, 2.5 parts of bentonite, levelling agent 0.5
Part, 0.5 part of adhesion promoter and 0.5 part of defoaming agent.
To make the purpose of the present invention, technical solution and effect clearer, clear and definite, combined with specific embodiments below to this hair
It is bright to be described further, it should be understood that the specific embodiments described herein are merely illustrative of the present invention, is not used to limit
Technical solution provided by the present invention.
Embodiment 1
The present embodiment provides the comprehensive cyclic utilization regeneration methods of all kinds of waste and old epoxy-based lacquers, include the following steps:
One: first sorting the waste and old epoxy-based lacquers coating of heavy antisepsis that coating decoration gets off by base ingredients with other categories
It opens, the waste and old coating of heavy antisepsis of epoxy ingredient property that sorting is opened is concentrated into closed container, then by cyclohexanone, positive fourth
Alcohol, ethyl carbonate mixed solvent are added in closed container and stir evenly, and then carry out immersion 4 hours or more, and must give up paint A;
Two, by the closed container for containing useless paint A in step 1, it is put into blender, starts blender, with 300 revs/min
Speed carries out dispersion stirring 1 hour or more, while being heated, and keeps temperature when temperature reaches 80 degree, using it is closed from
The impurity that dynamic control finer mesh equipment filters out is that the solidfied material generated with contacts such as water, oil, air and curing agent and coat of paint are residual
Slag, must give up paint B, and the strainer used is 200 mesh screens;
Three, indices test is carried out to useless paint B, according to index request situation, adds solid phenolic resin, then successively
Bentonite, levelling agent, adhesion promoter and defoaming agent, Lai Pingheng and the epoxy heavy antisepsis for meeting various performance indicators is added
Paint, then successively carry out grinding distribution to particle fineness and be less than 20 μm, test, barrelling, finished product epoxy heavy-duty antiseptic paint is obtained, is ground
Grinding jitter time is 2 hours.
In the present embodiment by the waste and old epoxy-based lacquers coating total amount of the heavy antisepsis that coating decoration gets off be 60 parts by weight in terms of, it is described plus
The amount of the solid phenolic resin entered is 25 parts, 3 parts of cyclohexanone, 2.5 parts of n-butanol, 5.5 parts of ethyl carbonate, 2.5 parts of bentonite, flows
0.5 part of flat agent, 0.5 part of adhesion promoter and 0.5 part of defoaming agent.
Obtained finished product epoxy heavy-duty antiseptic paint is tested, test result is as follows shown in table:
The super national standard now executed of the finished product epoxy heavy-duty antiseptic paint partial properties index that the present embodiment obtains, can meet each
The needs of class heavy antisepsis construction coating.
Embodiment 2
The present embodiment provides the comprehensive cyclic utilization regeneration methods of all kinds of waste and old epoxy-based lacquers, include the following steps:
One: the waste and old epoxy-based lacquers coating of the heavy antisepsis that factory's coating decoration gets off first and other categories are by base ingredients point
It picks out, the waste and old coating of heavy antisepsis of epoxy ingredient property that sorting is opened is concentrated into closed container, then by cyclohexanone, positive fourth
Alcohol, ethyl carbonate mixed solvent are added in closed container and stir evenly, and then carry out immersion 4 hours or more, and must give up paint A;
Two, by the closed container for containing useless paint A in step 1, it is put into blender, starts blender, with 300 revs/min
Speed carries out dispersion stirring 1 hour or more, while being heated, and keeps temperature when temperature reaches 80 degree, using it is closed from
The impurity that dynamic control finer mesh equipment filters out is that the solidfied material generated with contacts such as water, oil, air and curing agent and coat of paint are residual
Slag, must give up paint B, and the strainer used is 200 mesh screens;
Three, indices test is carried out to useless paint B, according to index request situation, adds solid phenolic resin, then successively
Bentonite, levelling agent, adhesion promoter and defoaming agent, Lai Pingheng and the epoxy heavy antisepsis for meeting various performance indicators is added
Paint, then successively carry out grinding distribution to particle fineness and be less than 20 μm, test, barrelling, finished product epoxy heavy-duty antiseptic paint is obtained, is ground
Grinding jitter time is 3 hours.
In the present embodiment by the waste and old coating total amount of the heavy antisepsis that coating decoration gets off be 60 parts by weight in terms of, the addition is consolidated
The amount of body phenolic resin is 20 parts, 4 parts of cyclohexanone, 3 parts of n-butanol, 6 parts of ethyl carbonate, 3 parts of bentonite, 0.6 part of levelling agent, attached
0.6 part and 0.6 part of defoaming agent of adhesion promoter.
Obtained finished product epoxy heavy-duty antiseptic paint is tested, test result is as follows shown in table:
The super national standard now executed of the finished product epoxy heavy-duty antiseptic paint partial properties index that the present embodiment obtains, can meet each
The needs of class heavy antisepsis construction coating.
Embodiment 3
The present embodiment provides the comprehensive cyclic utilization regeneration methods of all kinds of waste and old epoxy-based lacquers, include the following steps:
One: the waste and old epoxy-based lacquers coating of the heavy antisepsis that factory's coating decoration gets off first and other categories are by base ingredients point
It picks out, the waste and old coating of heavy antisepsis of epoxy ingredient property that sorting is opened is concentrated into closed container, then by cyclohexanone, positive fourth
Alcohol, ethyl carbonate mixed solvent are added in closed container and stir evenly, and then carry out immersion 4 hours or more, and must give up paint A;
Two, by the closed container for containing useless paint A in step 1, it is put into blender, starts blender, with 300 revs/min
Speed carries out dispersion stirring 1 hour or more, while being heated, and keeps temperature when temperature reaches 80 degree, using it is closed from
The impurity that dynamic control finer mesh equipment filters out is that the solidfied material generated with contacts such as water, oil, air and curing agent and coat of paint are residual
Slag, must give up paint B, and the strainer used is 200 mesh screens;
Three, indices test is carried out to useless paint B, according to index request situation, adds solid phenolic resin, then successively
Bentonite, levelling agent, adhesion promoter and defoaming agent, Lai Pingheng and the epoxy heavy antisepsis for meeting various performance indicators is added
Paint, then successively carry out grinding distribution to particle fineness and be less than 20 μm, test, barrelling, finished product epoxy heavy-duty antiseptic paint is obtained, is ground
Grinding jitter time is 3.5 hours.
In the present embodiment by the waste and old epoxy-based lacquers coating total amount of the heavy antisepsis that coating decoration gets off be 60 parts by weight in terms of, it is described plus
The amount of the solid phenolic resin entered is 30 parts, 2 parts of cyclohexanone, 2 parts of n-butanol, 5 parts of ethyl carbonate, 2 parts of bentonite, levelling agent
0.4 part, 0.4 part of adhesion promoter and 0.4 part of defoaming agent.
Obtained finished product epoxy heavy-duty antiseptic paint is tested, test result is as follows shown in table:
The super national standard now executed of the finished product epoxy heavy-duty antiseptic paint partial properties index that the present embodiment obtains, can meet each
The needs of class heavy antisepsis construction coating.
The present invention provides the comprehensive cyclic utilization regeneration method of all kinds of waste and old epoxy-based lacquers, focuses on regeneration technology, is added
Various auxiliary agents are not limited only to several examples enumerated above, in order to meet various performances epoxy heavy-duty antiseptic paint requirement,
The amount of the solid phenolic resin of addition, and the bentonite, levelling agent, adhesion promoter and the defoaming agent that are added can be adjusted
Amount and the proportionate relationship between them, such as when according to requiring production smoothness is good and wearability is good epoxy heavy-duty antiseptic paint,
The amount of solid phenolic resin can suitably be increased, the smoothness and wearability for the epoxy heavy-duty antiseptic paint produced in this way are with regard to more preferable
It is some.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof;To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced;Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (5)
1. the comprehensive cyclic utilization regeneration method of all kinds of waste and old epoxy-based lacquers, which comprises the steps of:
One: first sorting the waste and old epoxy-based lacquers coating of heavy antisepsis that factory's coating decoration gets off by base ingredients with other categories
It opens, the waste and old coating of heavy antisepsis of epoxy ingredient property that sorting is opened is concentrated into closed container, then by cyclohexanone, positive fourth
Alcohol, ethyl carbonate mixed solvent are added in closed container and stir evenly, and then carry out immersion 4 hours or more, and must give up paint A;
Two, by the closed container for containing useless paint A in step 1, it is put into blender, starts blender, with 300 revs/min of speed
Carry out dispersion stirring 1 hour or more, while being heated, keep temperature when temperature reaches when 80-110 is spent, by it is closed from
Dynamic control finer mesh equipment filters out impurity, obtained filtrate is cooled down to obtain useless paint B, the strainer used is 200-400 mesh screen;
Three, indices test is carried out to useless paint B, according to index request situation, adds solid phenolic resin, then sequentially add
Bentonite, levelling agent, adhesion promoter and defoaming agent, Lai Pingheng and the epoxy heavy-duty antiseptic paint for meeting various performance indicators, then
It successively carries out grinding distribution to particle fineness and is less than 20 μm, test, barrelling, obtain finished product epoxy-based lacquers.
2. the comprehensive cyclic utilization regeneration method of all kinds of waste and old epoxy-based lacquers according to claim 1, which is characterized in that with coating
The waste and old coating total amount of the heavy antisepsis constructed is 60 parts by weight meters, the amount of the solid phenolic resin of the addition is 20-30 parts,
2-4 parts of cyclohexanone, 2-3 parts of n-butanol, 5-6 parts of ethyl carbonate, 2-3 parts of bentonite, 0.4-0.6 parts of levelling agent, adhesive force promote
0.4-0.6 parts and defoaming agent 0.4-0.6 parts of agent.
3. the comprehensive cyclic utilization regeneration method of all kinds of waste and old epoxy-based lacquers according to claim 1, which is characterized in that with coating
The waste and old coating total amount of the heavy antisepsis constructed is 60 parts by weight meters, and the amount of the solid phenolic resin of the addition is 25 parts, ring
3 parts of ketone, 2.5 parts of n-butanol, 5.5 parts of ethyl carbonate, 2.5 parts of bentonite, 0.5 part of levelling agent, 0.5 part of adhesion promoter and
0.5 part of defoaming agent.
4. the comprehensive cyclic utilization regeneration method of all kinds of waste and old epoxy-based lacquers according to claim 1, which is characterized in that described
The grinding distribution time is 2-3.5 hours in step 3.
5. the comprehensive cyclic utilization regeneration method of all kinds of waste and old epoxy-based lacquers according to claim 1, which is characterized in that described
Solidification in step 2 using the impurity that finer mesh filters out is automatically controlled to be generated with contacts such as water, oil, air and curing agent
Object and coat of paint residue.
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CN201910051979.8A CN109897502A (en) | 2019-01-21 | 2019-01-21 | The comprehensive cyclic utilization regeneration method of all kinds of waste and old epoxy-based lacquers |
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Application publication date: 20190618 |